Methods of treating subterranean zones penetrated by well bores
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United States of America Patent
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Nov 30, 2004
Grant Date -
Nov 20, 2003
app pub date -
May 15, 2002
filing date -
May 15, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods of treating subterranean zones penetrated by well bores wherein the static temperatures of the zones are as high as 400.degree. F. and greater include using aqueous treating fluids comprised of an aqueous liquid containing one or more inorganic monovalent salts, multivalent salts or both in an amount no greater than about 5% by weight of the aqueous liquid and one or more specific synthetic hectorite clay gelling and thixotropy imparting agents.
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